Puerto Rico prickly apple (Harrisia portoricensis)

Care, watering, light and tips for Puerto Rico prickly apple on Floravia.

Puerto Rico prickly apple

Quick facts

About Puerto Rico prickly apple

Harrisia portoricensis, commonly known as Puerto Rico prickly pear or cactus, is a slow-growing, columnar and branched cactus that can reach several meters in height. Its segmented, spiny stems, with large white nocturnal flowers, make it ideal for xerophytic gardens or as an accent plant in sunny patios. Although its fruits are edible, it is primarily valued for its unique desert beauty.

Native range

Puerto Rico and the British Virgin Islands

Care tips

This species thrives in full sun, requiring at least 6 hours of direct light daily for optimal growth and flowering. Watering should be sporadic and deep, allowing the substrate to dry out completely between waterings, especially in winter to prevent root rot. Use a very well-draining substrate, specific for cacti and succulents. A common mistake is overwatering; it's better to underwater than to overwater.

How to save a dying Puerto Rico prickly apple

Warning signs
Soft, discolored (yellow/brown), shriveled, or drooping stems. Soft or rotten roots.
First aid
Remove plant, inspect roots. Cut soft/rotten parts with sterile tool. Allow to callus 2-3 days before repotting in dry substrate.
What kills it
Overwatering, especially in winter or with poor drainage. Also, heavy soil that retains moisture.
Can it be saved?
Yes, if rot hasn't reached the base or growth point. Recovery is slow but possible.

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